ticking noise from tranny

[Gottolovem]

couveterc

Post a photo of the pilot shaft with the bearing on it so I can be absolutely sure we are thinking of the same bearing!
I have some extra tranny stuff and more to come i think.
It will be used but in good working order if i have one

[couve terc]

hello gottoloven,

Dont have any pictures, cars at mechanics. Its the smaller inner bearing on the input shaft, opposite of the seal and its bearing. Hope this helps. Im off to retrieve the bearing, maybe i can get some pictures up.
The toyota part # i could come up with was 90363-25025 or standard bearing b25-145
All helps appreciated
Tony

[Petros]

... toyota doesnt make it anymore and nobody around here has anything similar....
hey petros i saw your kit online, just not sure if it includes this bearing. Do you know if the cheaper kit without syncros has that bearing? if so why not by itself

actually toyota never made the bearing, they bought it from a supplier, they just do not stock it anymore. we just have to find out the part number and the supplier and we should be able to get a new one.

the picture of the kit does show the input shaft bearing, so presumably it is in the kit. My kit has not arrived yet so I can not verify it. the kit without the syncros also shows the input shaft bearing as well. I also may have a good used one in my boxes of parts I saved, and I am sure Xirdned also has several, and other list members. SAVE ALL TRANMISSION PARTS, even if you do not need them.

[xirdneh]

B25-145 is the large bearing on end of input shaft and it is the same as the bearing on front end of Output Shaft
the other input shaft bearing VP-34 or RNU070614 is a smaller roller bearing inside the tranny
i think that is the one you guys are talking about?

On most of the Trannys I have taken apart that have bad input shaft roller bearing (see below) also have bad input shafts too
look at the area on the shaft where the bearing rides
is it pitted, blueish in color or grooved
also when input shaft is installed grab it and wiggle it, it should not move much if at all

this is the info out of Transmission Notes in Repair Guides
4. Input Shaft Roller Bearing info. This Bearing is inside the tyranny pressed into the Intermediate Plate. Approx 1.339” ID x 2.282”OD x .549” or .510” Thk.
It is located at the highest point in the tranny subject to wear first, if oil level is too low.
KOYO RNU070614 Toyota part # 90365-34003 34mm 58mm 14mm recess .03mm
KOYO RNU0713 Unknown 34mm 58mm 13mm .02mm
NSK VP34-2 90363-25016 34mm 58mm 14mm .03mm
NSK VP34-1 90365-34003 34mm 58mm 13mm .02mm
They all have a recess cut around one outside edge (53mm dia) and it is used for a retainer (12mm bolt and small plate) to lock bearing in place. The 14mm Thk bearing protrudes aft far enough for the large Idler Gear to make contact and that is probably why the 13mm Thk bearing is used. The Idler Gear is unlikely to hit the bearing because the angled teeth force the Gear aft away from the bearing. I have not seen any sign of interaction on trannys with 14mm bearing.

[Gottolovem]

I'm guessing that the bearing in question (roller bearing) cannot be serviced without removing the bellhousing and do you need special puller?

[Gottolovem]

here is a photo of each bearing

large one on input shaft


roller bearing input shaft rides on is this the one that you need?

How do i safely remove this one xirdneh,petros?

[Gottolovem]

I just went and got a good look and i am not comfortable taking the tranny that far apart for the bearing!
I feel like i'm going to have a humpty dumpty situation on my hands.

[Petros]

that bearing can only come out by going backwards, and the reduction gear is in the way. which means that the main gear cluster and case have to come apart so you can press it out. someone on the forum did it by only partially taking it apart, but I do not remember how it was done. when I took one of these trans apart the main shaft and auxiliary shafts both had to come out, which means tearing it down most of the way to get to that bearing.

It can be tapped out with a soft drift once apart, the major job is just getting to it.

[couve terc]

So after spending last night and most today looking for this elusive bearing. I went to my mechanics to retrieve what was left of the bearing. It had prettywell locked on to the shaft and came out in pieces. I then asked to see where it came out of. After inspecting it and the diagrams, it is the bigger rear one. I was thrown off when he said he had to disassemble to get it out. My bad, but im relieved cause this one readily available. But looking at gottolovems picture mine is different it has no lip and a groove for a clip. oh well. Still gonna persue some more leads on that other bearing, just to know. Thanks everyone that chimed in. All this info helps a newb like me.
Tony

[Gottolovem]

That is awesome news for you and me because the car that i just sold has the same issue.( it goes to it's new home next week).
I hope it turns out to be the same one for me to I didn't want to put my spare tranny in it.
I think the shafts are identical yours looks diffrent because it's dammaged!

[Gottolovem]

Hmm I think #2 might just slip a little